<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Form
 * @subpackage Decorator
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */

/** @see Zend_Form_Decorator_Abstract */
require_once 'Zend/Form/Decorator/Abstract.php';

/**
 * Word-based captcha decorator
 *
 * Adds hidden field for ID and text input field for captcha text
 *
 * @category   Zend
 * @package    Zend_Form
 * @subpackage Element
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Word.php 23775 2011-03-01 17:25:24Z ralph $
 */
class Zend_Form_Decorator_Captcha_Word extends Zend_Form_Decorator_Abstract {
	/**
	 * Render captcha
	 *
	 * @param  string $content
	 * @return string
	 */
	public function render($content) {
		$element = $this->getElement ();
		$view = $element->getView ();
		if (null === $view) {
			return $content;
		}
		
		$name = $element->getFullyQualifiedName ();
		
		$hiddenName = $name . '[id]';
		$textName = $name . '[input]';
		
		$label = $element->getDecorator ( "Label" );
		if ($label) {
			$label->setOption ( "id", $element->getId () . "-input" );
		}
		
		$placement = $this->getPlacement ();
		$separator = $this->getSeparator ();
		
		$hidden = $view->formHidden ( $hiddenName, $element->getValue (), $element->getAttribs () );
		$text = $view->formText ( $textName, '', $element->getAttribs () );
		switch ($placement) {
			case 'PREPEND' :
				$content = $hidden . $separator . $text . $separator . $content;
				break;
			case 'APPEND' :
			default :
				$content = $content . $separator . $hidden . $separator . $text;
		}
		return $content;
	}
}
